Other ID: 149
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Principal Investigator(s): Bradford Butman
Data Type(s): Electro-Magnetic: Magnetics, Environmental Data: CTD, Imagery: Photo, Location-Elevation: Navigation, Time Series: Mooring (physical oceanography)
Scientific Purpose/Goals: This cruise was part of a continuing study of currents and sediment transport on the Continental Slope. The major objectives of the cruise were: 1) to recover Slope Array II (three subsurface moorings at stations SA, SE, and SF, and a bottom tripod at T); 2) to deploy Slope Array III (five subsurface moorings at stations SA, SE, SF, SG, and SH, and one bottom tripod at station T); 3) to recover and redeploy four surface guard buoys at stations SF and T; and 4) to conduct a hydrographic survey across the outer shelf and upper slope between 68 and 71 degrees W.
Start Port/Location: Woods Hole, MA
End Port/Location: Woods Hole, MA
Start Date: 1984-03-12
End Date: 1984-03-19
Equipment Used: Bottom platform, CTD, Magnetometer (wh), Camera- deep sea, Northstar 6000 LORAN-C
Information to be Derived: Time series data;
Summary of Activity and Data Gathered: Moorings deployed: 6 (#277, 278, 279, 280, 281, and 282 recovered FA 84024 OCEANUS 159 Nov. 13-24, 1984). Moorings recovered: 4 (#273, 274, 275, and 276, all deployed FA 83011 OCEANUS 149 Oct. 17-24, 1983). All mooring work was completed as planned. Bad weather curtailed mooring operations for one full day and made work difficult during most of the cruise. A moderate CTD survey was completed. The current meter on the bottom tripod system failed after about 3 weeks, probably because of a bad connecting cable. To assure near-bottom current data, an additional subsurface mooring was deployed at station T on OCEANUS cruise 154 by M. Briscoe on May 16, 1984. Hydrography: CTD: 18; XBT: 18; Salinity: 51; Suspended sediment oxygen: 15; Suspended sediment nutrients: 34.
Staff: Michael Bothner, Bradford Butman, Mary E. Hastings, Barry Irwin, Joseph S. Newell, Carol M. Parmenter, Lawrence Poppe, William J. Strahle
Notes: Original Center People field contained: Brad Butman, Mike Bothner, Jay Pulliam, Cathy O'Dell, Joseph Newell, Carol Parmenter, Lawrence Poppe, Barry Irwin, Mary Polly Shoukimas, William Strahle.
southern New England Shelf and slope, United States, North America, North Atlantic;